Main
Denis Ostroushko
Education
University of Minnesota
MS Biostatistics 3.845 GPA
Minneapolis, MN
Expected 2024 - 2022
University of Minnesota - Morris
BA Mathematics, Statistics 3.43 GPA
Morris, MN
2019 - 2015
Professional Experience
Healthcare Analyst I & II
Medica
Minneapolis, MN
August 2023 - June 2019
- Collaborated with business owners to assess member assistance programs. Used statistical models and simulations to understand cost savings distribution. Developed a strategy, resulting in an additional $1,000,000 annualized savings.
- Collaborated with member identification team to improve risk models for hospital readmission. Developed a set of predictive models. Best classifier improved AUC score by 15%.
- Automated actuarial completion factors model using SAS. Improved estimation granularity, reduced prediction error by 35%. Reduced delivery time for the final product.
- Led the introduction of benchmarks from Milliman proprietary software. Improved identification of cost savings opportunities and increased strategy transparency.
Research Experience
Graduate Research Assistant
Master’s Thesis
Minneapolis, MN
Present - August 2023
- Worked with Dr. Julian Wolfson to evaluate the impact of cohort definition on the analysis results.
- Used data from the Fairview Health System to conduct the study. Created a list of cohorts with varying patient inclusion criteria. Illustrated that cohort definition can result in vastly different analysis results and conclusions.
Graduate Research Assistant
Multiview Data Integrative Analysis of Progression to AD
Minneapolis, MN
Present - August 2023
- Developed a pipeline to identify important predictors of Alzheimer’s Disease (AD) from lipidomics ADNI data. Generalized pipeline to other genomics data sets.
- Developed and compared multiview data integration methods (SIDA, iDeepViewLearn) to improve detection of at-risk of AD patients among ANDI cohort population.
Research Assistant
Truckers & Turnover Research Project
Morris, MN
2019 - 2018
- Managed scripts to produce publication materials. Presented results of medical cost analysis for truck drivers with OSA as a poster. Helped develop a bootstrap simulation to estimate variance of cost differences.